[Evaluation of protein intake in the premature infant based on serum free amino acids].
D000596:Amino Acids / Q000097:blood*; D000818:Animals; D003553:Cystine / Q000097:blood*; D004044:Dietary Proteins; D006801:Humans; D007227:Infant Nutritional Physiological Phenomena; D007231:Infant, Newborn; D007234:Infant, Premature; D008892:Milk
D000596:Amino Acids; D004044:Dietary Proteins; D003553:Cystine